.md-header, .md-tabs {
    background-color: #252839;
}

.md-header-nav .ksqldb-home {
    font-size: .65rem;
    border: 1px solid #787a82;
    align-self: center;
    padding: 7px 10px;
    border-radius: 5px;
    font-weight: 600;
    background: #1b1e2b;
}

.md-header-nav .ksqldb-home i {
    color: #787a82;
    padding-left: 3px;
}

.md-header-nav__title {
    padding-left: .1rem;
}

select.version {
    font-size: .65rem;
    font-family: "Roboto",-apple-system,BlinkMacSystemFont,Helvetica,Arial,sans-serif;
    color: #fff;
    background: none;
    border: none;
    border-radius: 0;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-repeat: no-repeat;
    background-size: 0.6em auto;
    background-position: right 0.25em center;
    padding-right: 1em;
    background-image: url("data:image/svg+xml;charset=utf-8, \
    <svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 40'> \
      <polygon points='0,0 60,0 30,40' style='fill:white;'/> \
    </svg>");
}

select.version::-ms-expand {
    display: none;
}

@media screen and (min-width:0\0) {
    select.version {
        background: none\9;
        padding: 5px\9;
    }
}

@media screen and (min-width: 60em) {
    .md-header-nav__source {
        width: 10.7rem;
        max-width: 10.7rem;
    }
}

.centered-img {
    display: block;
    margin: 30px auto;
}

.cards {
    display: flex;
    flex-flow: row wrap;
    justify-content: space-evenly;
    align-items: stretch;
    margin-bottom: 40px;
}

@media (max-width: 800px) {
  .cards {
    flex-direction: column;
  }
}

.card {
    display: flex;
    flex-flow: column wrap;
    flex: 1;
    align-items: stretch;
    background-color: #f6f8f8;
    border: 2px solid #eee;
    border-radius: 3px;
    padding: 12px;
    margin: 5px;
}

ul.card-items {
    margin-left: 0;
    list-style-type: none;
    flex: 1;
}

ul.card-items li {
    margin-left: 0;
}

.card-body {
    flex: 1;
}

.card-more {
    align-self: flex-start;
}

.tutorial-begin {
    display: flex;
    flex-flow: row nowrap;
}

.tutorial-begin a {
    align-self: center;
    margin: auto;
    transform: translateX(-20px);
}

.card.tutorial {
    border-top: 3.5px solid #C3C5DD;
}

.card.how-to-guide {
    border-top: 3.5px solid #42cceb;
}

.card.how-to-guide.contribute {
    background: repeating-linear-gradient(
      45deg,
      #f6f8f8,
      #f6f8f8 10px,
      #ffffff 10px,
      #ffffff 20px
    );

    border: 2px dashed #eee;
    border-top: 3.5px solid #42cceb;
}

.card.getting-started {
    border-top: 3.5px solid #ef5762;
}

.card.concepts {
    border-top: 3.5px solid #252839;
}

.card.operations {
    background-color: #F8F6F6;
}

.card.reference {
    border-top: 3.5px solid #66CC69;
}
